
For children, it's a chance to introduce them to the wonders of comics, and encourage reading. For adults, it's being able to collect one of a kind comic issues from publishers including Marvel, DC, Dark Horse, and a number of Indy companies.
Now, the comic book store owners have to pay for these titles, so don't be surprised if you're limited to picking up a couple of issues, but most retailers have contests, Cosplay, and lots of other goodies that day too.
For more info, and to find a participating comic shop near you, go to their website:
www.freecomicbookday.com